package com.cnf.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.cnf.reggie.common.CustomException;
import com.cnf.reggie.dto.DishDto;
import com.cnf.reggie.entity.Dish;
import com.cnf.reggie.entity.DishFlavor;
import com.cnf.reggie.entity.Setmeal;
import com.cnf.reggie.entity.SetmealDish;
import com.cnf.reggie.mapper.DishMapper;
import com.cnf.reggie.service.DishFlavorService;
import com.cnf.reggie.service.DishService;
import com.cnf.reggie.service.SetmealDishService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.stream.Collectors;

@Service
public class DishServiceImpl extends ServiceImpl<DishMapper, Dish> implements DishService {
    @Autowired
    private DishFlavorService dishFlavorService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Transactional
    public void saveWithFlavor(DishDto dishDto) {
        this.save(dishDto);
        Long dishId = dishDto.getId();
        List<DishFlavor> flavors = dishDto.getFlavors();
        flavors = flavors.stream().map((item)->{
            item.setDishId(dishId);
            return item;
        }).collect(Collectors.toList());
        dishFlavorService.saveBatch(flavors);
    }
    @Transactional
    public DishDto getByIdWithFlavor(Long id) {
        Dish dish = this.getById(id);
        DishDto dishDto =new DishDto();
        BeanUtils.copyProperties(dish,dishDto);
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(DishFlavor::getDishId,id);
        List<DishFlavor> flavorList = dishFlavorService.list(queryWrapper);
        dishDto.setFlavors(flavorList);
        return dishDto;
    }

    @Transactional
    public void updateWithFlavor(DishDto dishDto) {
        this.updateById(dishDto);
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(DishFlavor::getDishId,dishDto.getId());
        dishFlavorService.remove(queryWrapper);
        List<DishFlavor> flavors = dishDto.getFlavors();
        flavors = flavors.stream().map((item)->{
            item.setDishId(dishDto.getId());
            return item;
        }).collect(Collectors.toList());
        dishFlavorService.saveBatch(flavors);
    }

    @Override
    public void removeWithDish(List<Long> ids) {
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.in(Dish::getId,ids);
        queryWrapper.eq(Dish::getStatus,1);
        int count = this.count(queryWrapper);
        if(count > 0){
            throw  new CustomException("菜品正在售卖中，不能删除！");
        }

        this.removeByIds(ids);
    }
}
